St. Clair County, Illinois tornadoes

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59 confirmed tornadoes since NOAA records began in 1950 (the first here in 1952). Most recent: April 20, 2025, EF0. 2026 so far: 3 preliminary reports preliminary

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Every tornado path in the county

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(E)F0(E)F1(E)F2(E)F3(E)F4(E)F5Unrated

Each path is a straight line from where the tornado started to where it ended, which is all most NOAA records hold. Tap a path for its details.

At a glance

Total591950 to 2025
Per year0.8average since 1950
Peak monthApril17 of 59
StrongestF3May 15, 1968
Deaths6whole paths, see note
Injuries106whole paths, see note

Deaths and injuries are NOAA's totals for each tornado's whole path, which can extend beyond St. Clair County.

When tornadoes hit here

By month

170 Jan: 0Feb: 0Mar: 5Apr: 17May: 15Jun: 9Jul: 2Aug: 1Sep: 2Oct: 4Nov: 3Dec: 1JanFebMarAprMayJunJulAugSepOctNovDec

April is the peak month, with 17 of 59 tornadoes.

By time of day

120 12 AM: 3: 0: 23 AM: 0: 0: 06 AM: 0: 0: 09 AM: 0: 1: 112 PM: 5: 2: 43 PM: 2: 8: 126 PM: 5: 2: 59 PM: 4: 2: 112 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM

Most often around 5:00 PM. Times as recorded by NOAA, mostly Central Standard Time.

By year, 1950 to 2025

50 1950: 0: 0: 1: 0: 0: 2: 1: 2: 4: 11960: 1: 1: 0: 0: 0: 0: 0: 1: 2: 01970: 0: 0: 0: 1: 0: 0: 1: 0: 0: 01980: 0: 0: 0: 1: 2: 0: 0: 0: 2: 01990: 1: 2: 1: 0: 0: 3: 1: 0: 2: 02000: 1: 0: 1: 3: 0: 0: 2: 0: 0: 12010: 1: 1: 0: 0: 2: 0: 1: 0: 0: 12020: 0: 0: 1: 4: 2: 519501960197019801990200020102020

The line is the five-year average. Tornadoes before about 1953 were under-reported, and better radar since the 1990s finds more weak ones. This year so far: 3 preliminary reports.

By rating

EF0
23
EF1
19
EF2
14
EF3
3

Ratings before February 2007 use the original F scale; the numbers line up with today's EF scale. Unknown means NOAA could not assign a rating.

Notable tornadoes

Deadliest

F3, May 15, 1968

4 deaths, 60 injuries Strongest

F3, May 15, 1968

2 mile path Longest path

75.9 miles, F1

May 3, 1958, whole path Widest

700 yards, EF2

March 14, 2025

All 59 tornadoes, newest first

DateRatingPath lengthWidthDeathsInjuries
Apr 20, 2025EF00.75 mi100 yd00
Apr 19, 2025EF00.45 mi25 yd00
Mar 14, 2025EF211.01 mi700 yd00
Mar 14, 2025EF16.81 mi450 yd00
Mar 14, 2025EF114.67 mi275 yd00
May 26, 2024EF010.5 mi500 yd00
Apr 18, 2024EF01.09 mi35 yd00
Apr 15, 2023EF01.12 mi90 yd00
Apr 15, 2023EF13.04 mi200 yd00
Apr 15, 2023EF00.58 mi100 yd00
Apr 15, 2023EF119.57 mi100 yd00
May 19, 2022EF00.23 mi50 yd00
Jun 12, 2019EF00.53 mi10 yd00
Jun 13, 2016EF00.41 mi25 yd00
Oct 13, 2014EF10.25 mi50 yd00
Oct 13, 2014EF11.38 mi100 yd00
Apr 22, 2011EF11.75 mi80 yd00
Dec 31, 2010EF00.14 mi50 yd00
Jun 8, 2009EF211.79 mi176 yd00
Jul 21, 2006F06 mi60 yd00
Apr 2, 2006F27 mi100 yd111
Jun 10, 2003F03 mi50 yd00
Jun 10, 2003F23.5 mi150 yd02
Jun 10, 2003F03.5 mi75 yd00
Apr 27, 2002F11.7 mi100 yd00

2026 preliminary reports not yet confirmed

Report dateLocationRating
Apr 27, 20263 ENE Scott AfbNot yet rated
Mar 15, 2026New AthensNot yet rated
Mar 10, 20263 SSE FayettevilleNot yet rated

Preliminary reports from the Storm Prediction Center. One tornado can be reported more than once, and NOAA confirms the final record months later.

Nearby counties

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Source: NOAA Storm Prediction Center severe weather database, 1950 to 2025, and SPC preliminary reports for 2026. Page built October 12, 2026.